also-known-as

구준엽
Koo Jun-yeop
Koo Jun-yeob
Koo Jun-yub
DJ Koo
Ku Jun-yup
Gu Jun-yup
Goo Joon-yeob
Goo Joon-yup
Gu Joon-yup
Koo Joon-yeop
具俊曄